#517EEB#517EEB

#517EEB is a mid, vivid blue. Relative luminance 0.227; OKLCH L 61.6% C 0.172 H 264.9°. Best body text is #000000 at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#517EEB
RGB	rgb(81, 126, 235)
HSL	hsl(222, 79%, 62%)
HSV	hsv(222, 66%, 92%)
CMYK	cmyk(65.5%, 46.4%, 0%, 7.8%)
CIE-LAB	lab(54.73, 19.07, -59.72)
CIE-LCH	lch(54.73, 62.69, 287.71°)
OKLab	oklab(61.63% -0.0152 -0.1709)
OKLCH	oklch(61.63% 0.172 264.9)
XYZ	xyz(25.8444, 22.6667, 81.5943)
Luminance	0.2267 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517EEB #EBBE51

analogous

#51CBEB #517EEB #7151EB

triadic

#517EEB #EB517E #7EEB51

tetradic

#517EEB #EB51CB #EBBE51 #51EB71

square

#517EEB #EB51CB #EBBE51 #51EB71

split-complementary

#517EEB #EB7151 #CBEB51

monochromatic

#1441AE #1A55E5 #517EEB #88A7F1 #BFCFF8

Accessibility & contrast

On white

3.79

#517EEB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.53

#517EEB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517EEB

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517EEB	#FFFFFF	#000000	##000000
##517EEB	1.00	3.79	5.53	5.53
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.53	21.00	1.00	1.00
##000000	5.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#468AEF

Deuteranopia (green-blind)

#277CE9

Tritanopia (blue-blind)

#0097A9

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #517eeb;
/* rgb */ color: rgb(81, 126, 235);
/* oklch */ color: oklch(61.6% 0.172 264.9);

Tailwind

colors: {
  custom: {
    50: '#91a2f2',
    500: '#517eeb',
    950: '#000000',
  },
}

SCSS

$custom: #517eeb;
$custom-light: #91a2f2;
$custom-dark: #000000;

JSON

{
  "hex": "#517eeb",
  "rgb": {
    "r": 81,
    "g": 126,
    "b": 235
  },
  "hsl": {
    "h": 222.468,
    "s": 79.381,
    "l": 61.961
  },
  "oklch": {
    "l": 0.61633,
    "c": 0.1716,
    "h": 264.9
  },
  "luminance": 0.22669
}

Semantic roles & 50–950 ramp

primary

#517EEB

secondary

#E8D8B0

accent

#9E0ADC

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F17

muted

#7E7E85

Preview Lab

Preview with #517EEB

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →